Thread: Need help locating trailer light fuse on a toyota tacoma

Did you try the owners manual? Usually there is a list of what fuse does what. On my Ford they are in one of the fuse boxes. Good luck

Look under the hood for another fuse box.

Owners manual does not show a location for trailer fuses.

Originally Posted by Crappie Stalker

Owners manual does not show a location for trailer fuses.

If all your truck lights are working okay then test the plug-in on the truck. All of your lights on the truck are fused except there is no seperate fuse for the trailer plug to my knowledge.
Sounds like your problem is in the wiring connections either on the vehicle or the trailer. Good luck, Ferdi aka Fred

Found this for you.
If you find one or all of your trailer lights won't work [when connected to a 2004 Toyota TACOMA], there is a seperate fuse system for factory trailer set-up's behind the driver-side rear seat under the black converter box. It is not shown in the manual.
There are four fuses labeled RIGHT, LEFT, TAIL, and POWER.

Mine is under the hood but I have an '06.

Found this for you.
If you find one or all of your trailer lights won't work [when connected to a 2004 Toyota TACOMA], there is a seperate fuse system for factory trailer set-up's behind the driver-side rear seat under the black converter box. It is not shown in the manual.
There are four fuses labeled RIGHT, LEFT, TAIL, and POWER.[/QUOTE]

This is exactly were the blown fuse was at.
Thanks again.

Originally Posted by Barnacle Bill

Found this for you.
If you find one or all of your trailer lights won't work [when connected to a 2004 Toyota TACOMA], there is a seperate fuse system for factory trailer set-up's behind the driver-side rear seat under the black converter box. It is not shown in the manual.
There are four fuses labeled RIGHT, LEFT, TAIL, and POWER.

Thanks for the great info. My trailer lights went out on the way home from the lake. I tested everything I could think of. It was the stinking little hidden fuse. Worse than that 3 years ago I was fishing at Wallowa Lake. Long way from home. I was driving a different 2003 Tacoma. My trailer lights went out. I checked everything i could think of to no availe. I took it down to the local mechanic and he could find nothing in the trailer. He said he thought it might be the converter box. The nearest one was in Twin Falls Idaho. Got there and they checked it out and said it was the converter box. They said they didn't have one in stock and there werent any in the USA. They could get me one from Japan in 3 to 5 weeks. This is a family site so I wont repeat what I told him. Wow all at once an aftermarket one appeared at ther local auto parts store. About 1/3 the price of toyotas. Now I wonder if it was a converter box at all. The same exact symptoms were fixed with a little fuse.
Hope your great advice saves some more folks some money. Thanks